ODEs: rk routing with derivs on rhs



On Mon, 2007-01-15 at 22:04 -0800, Daniel Lakeland wrote:
> Many thanks to sheldon who helped me reformulate the equations. It
> turned out with the appropriate carefulness maxima could rearrange the
> equations to be free of derivatives on the rhs. I think this is a case
> of "you should have printed it out". Sometimes math is easier to do on
> paper.
> 
> Now, here's a simpler question:
> 
> Why does "? rk" work on my machine at work (windows maxima 5.10) but
> not at home (debian 5.10 with maxima-share package)
> 
> On windows it tells me about the runge kutta routine in the "dynamics"
> package. But even though everything is up to date on the debian
> machine, ? rk only gives me
> 
> ? rk
> 
>  -- System variable: tensorkill
>      Variable indicating if the tensor package has been initialized.
>      Set and used by `csetup', reset by `init_ctensor'.
> 
>